hey im new to this but can any one help in how i adjust my cam chain on my suzuki dr125 1989 , cheers

 

on the barrel underneath the carb there is a screw and nut (the adjusted), try that (y) i have a suzuki dr 125 1988 , if that doesnt do anything take out the adjusted and check it is not sticking i had the same problem i though it was the chain and tensioners but it was just the adjusted that was seized.